These Tiny Frogs Are Some of the Most Toxic Animals in the World

Scientists believe poison dart frogs assimilate plant poisons which are carried by their prey. Poison dart frogs raised in captivity and isolated from insects in their native habitat never develop poison.

See more of Costa Rica's charismatic wildlife in Untamedfrom Nat Geo Wild. Follow filmmaker Filipe DeAndrade and his two best friends as they travel throughout Costa Rica in search of the most diverse, iconic and unexpected animal species the country has to offer.

These Tiny Frogs Are Some of the Most Toxic Animals in the World

Scientists believe poison dart frogs assimilate plant poisons which are carried by their prey. Poison dart frogs raised in captivity and isolated from insects in their native habitat never develop poison.

See more of Costa Rica's charismatic wildlife in Untamedfrom Nat Geo Wild. Follow filmmaker Filipe DeAndrade and his two best friends as they travel throughout Costa Rica in search of the most diverse, iconic and unexpected animal species the country has to offer.